Spring-wheel.



A. R. MISKIN.

SPRING WHEEL. APPLICATION FILED APR. 16, 1908.

Patented Mar. 1, 1910.

2 SHEETS-SHEET 1.

W1 TNES'SES ANDREW E GRAHAM m. PHOTD-LITHOGRAPHERS.WuSMHQTqN n c A. R.MISKIN.

SPRING WHEEL.

APPLIGATION FILED APR.16, 1903.

ANDREW n. GRAHAM co. PHOTO-LIYNOGRAPHER5. vmanma'mu, 0,9,

W1 TNESSES 5 STATES PATEN ARTHUR It. IVIISKIN, OF IDAHO FALLS, IDAHO,ASSIGNOR TO MISKIN SPRING WHEEL COMPANY, OF IDAHO FALLS, IDAHO, ACORPORATION OF IDAHO.

SPRING-WHEEL Specification of Letters Patent.

Patented Mar. 1, 1910.

Application filed April 16, 1908. Serial No. 427,359.

T 0 all whom it may concern:

Be it known that I, ARTHUR It. Misnm, a citizen of the United States,residing at Idaho Falls, in the county of Bingham and State of Idaho,have invented certain new and useful Improvements in Spring-Vheels, ofwhich the following is a specification.

My invention has for its object the provision of a spring wheel whereinthe hoop or rim of the Wheel itself is resilient or pliable so as to actin the capacity of a spring. In this Way, the jars and jolts are takenup by the spring rim of the wheel and no other springs are necessary.

Thus a further object is to provide a spring wheel consisting of butvery few and simple parts.

Another object of my invention is the provision of a spring wheel whichwill absorb all jar or shock without communicating it to the hub or aXleof the vehicle, which will adapt itself automatically to varying loadsand stress and which will adapt itself to all irregularities in theroadway.

A further object of the invention is to provide a spring wheel capableof exerting great tractive power and which is provided with compensatingmeans for distributing the strain equally to the entire circumference ofthe spring rim.

The details of construction, arrangement, and operation of parts are ashereinafter described, and shown in the accompanying drawings, in which-Figure 1 is a face view of the wheel in its simplest and normal form.Fig. 2 is a face view of the same wheel showing the movable parts in theposition they assume when the wheel is sustaining a load. Fig. 3 is inpart an edge view and in part a cross-section of the Wheel shown inFigs. 1 and 2. Fig. 4 is mainly a side View, a portion being in section,illustrating the attachment of cushioned blocks on the rim of the wheel.Fig. 5 is a face View of the modified form of the wheel, that is to say,a wheel having a multiplicity of flexible frames connecting the spokeswith the hub. Fig. 6 is a detail section of the hub portion of the wheelshown in Fig. 5.

I will first describe the invention as shown in Figs. 1, 2, 3. Thenumeral 1 designates the rim of the wheel which is in the form of aspring meta-l hoop, combining elasticity and rigidity in due proportion.It is provided with a central boring or hub 2 having a radial flange 3.Around this 1111 is arranged a frame composed of a series of bars 5,which are pivoted together at their ends preferably by means ofeye-bolts (5; and connected with the hub flange 3 by means of pivotedlinks t which are each pivoted to a bar 5 at a point outside a straightline conmeetin the pivotal connections of the ends of the ar. The jointsof this frame are connected with the frame 1 by means of spokes 7pivoted to clips 8 that embrace the rim. In its normal form the framecomposed of bars 5 is a rectangular parallelogram as shown in Fig. 1,the rim 1 being in such case circular. When a load is imposed on thewheel it is flattened more or less, or assumes a more or less ellipticalform, as shown in Fig. 2, in which case, the parallelogram becomesoblique, or diamond-shape. It is obvious that this result must ensue bythe reason of thrust and tension applied by the links 4t and spokes 7.

The clips 8 embrace or pass around the flexible rim 1, and, in order tohold them properly spaced upon the rim, a thin steel ribbon is appliedto the rim and extends around it, the clips being riveted or otherwisesecured to this outer hoop 9 or cushion blocks 11 of rubber may beemployed, the same being spaced apart, as shown in Fig. 4.

The spokes 7 are adjustably connected with the joints of theparallelogram frame by means of nuts 8 applied to their innerscrew-threaded ends. Clips 10 are arranged between the clips 8 as shown,for the purpose of holding the outer steel rim 9 duly spaced from theinner rim 1.

It is obvious that when the rim of the wheel comes in contact with anobstruction in the roadway, it will flatten more or less, in the samemanner as under the imposition of a load, and will thus pass easily overthe obstruction, without causing a severe jarring or jolt. For a furthercushioning effect, blocks of rubber, leather, or other yieldingmaterial, may be secured to the outer rim, as shown in Fig. 4t, and, forthis purpose the spacing blocks 10 may be utilized.

When it is desired to provide a wheel of this character, that shall becapable of sustaining heavy loads, the number of spokes 7 and rim clips8, also the number of the parallelogram frames, is increased, as shownin Fig. It becomes necessary in such case to provide the hub 2 with twoparallel flanges 3, instead of one as in the form of Wheel shown inFigs. 1, 2, 3. The arrangement of the flanges and the attachment of thelinks at, are illnst *ated in Fig. 6.

hat I claim is:

1. The improved spring wheel composed of a flexible rim a hub having aradial flange, a flexible frame arranged around the hub and havingnormally the form of a parallelogram, and consisting of a series of barspivoted together at their ends, a series of links corresponding innumber with said bars and pivotally connecting the latter with the hub,and a series of radial spokes which pivotally connect the joints of thebars with the rim, as shown and described.

2. The improved spring wheel composed of a hub having two 'adial flangesspaced apart, a flexible rim, :1 series of frames ar ranged around thehub and composed of bars pivoted together at their ends and havingnormally the form of a parallelogram, a series of links pivotallyconnecting the flanges with the bars composing the several frames, and aseries of spokes corresponding in number to the joints of the severalframes, and extending radially between said joints and the rim to whichthey are pivoted, substantially as described.

In testimony whereof I afiix my signature, in presence of two witnesses.

ARTHUR H. NIISKIN.

Witnesses EDWIN E. Misliix, JOHN E. Gnonnno.

